转子变频技术在矿井提升机电控系统中的应用  

Application of Rotor Frequency Conversion Technology to Electric Control System of Mine Hoist

作　　者：刘连君[1] 张传明[2] 李艳辉[1] 李军 

机构地区：[1]铁法能源公司,辽宁铁岭112700 [2]新汶矿业集团有限责任公司,山东新泰271204 [3]天津民益电气有限公司,天津300400

出　　处：《煤炭科学技术》2011年第8期87-89,共3页Coal Science and Technology

摘　　要：提升机TKD高压交流电控系统的节能变频改造一般选用高压变频方案,而矿井交流提升机普遍使用中小功率电机,高压变频的成本较高、性价比低,因此提出一种采用高压交流绕线电机转子变频调速控制系统的节能变频改造方案,将高压交流绕线电机的定子短封,使用低压变频器对电机的转子供电,实现高压交流绕线电机的变频调速控制。首先在山东新矿集团华恒公司副斜井提升机进行了工业运行试验,对电机性能进行测试分析,并统计了系统的节能效果,结果表明,电机的综合效率没有明显变化,功率因数提高到0.95,节电率效果显著。The energy saving and frequency conversion reconstruction of the TKD high voltage AC electric control system for the mine hoist generally would adopt a high voltage frequency conversion alternative.In fact,the mine AC hoist would apply a medium or small power motor generally.The high voltage frequency conversion would have a high cost and a low performance and cost ratio.Therefore an energy saving and frequency conversion reconstruction alternative of the stator frequency conversion control system for the high voltage AC winding motor was provided.The stator would be short sealed for the high voltage AC winding motor.The low transformer would be applied to supply the power for the stator of the motor.Thus the frequency converted speed control could be realized for the high voltage AC winding motor.A industrial trial of the frequency conversion technology was first conducted on the hoist applied to the mine auxiliary inclined shaft of Huanheng Mine,Shandong Xinwen Coal Mining Group.The measurement and analysis were conducted on the performances of the electric motor and there was a statistic on the energy saving effect of the system.The results showed that the comprehensive efficiency of the electric motor had no obvious change,but the power factor was improved by 0.95 and the power saving rate effect was obvious.

关 键 词：转子变频 TKD电控系统 矿井提升机 定子短封 交流绕线电机 

分 类 号：TD67[矿业工程—矿山机电]